Montana NAIP 2015

This is an ArcGIS Server Image Service of the 4-band 2021 National Agricultural Imagery Program (NAIP) orthorectified digital aerial photos of Montana. Imagery defaults to natural color. To view the imagery as false-color infrared (CIR), select band 4 as the red image, band 1 as the green, and band 2 as the blue. Or you can use the three processing templates: Natural Color, Color Infrared, and Normalized Difference Vegetation Index (NDVI) to symbolgize the service. This data set contains imagery from the National Agriculture Imagery Program (NAIP). These data are digital aerial photos, at one meter resolution, of most of the state of Montana, taken in 2015 and 2016. Due to cloud cover, wildfire smoke, and snow cover the imagery acquisition was not completed in 2015. Additional photos were taken in 2016. A map showing the imagery that was collected in 2015 is available at: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2015_NAIP/UTM_County_Mosaics/2015_NAIP.jpg The data are available from the State Library in three different formats. The most accessible format is a downloadable collection of compressed 4-band MrSID images, each 24 kilometers square. These images are in Montana State Plane coordinates, units meters. The web page for accessing these images is: https://geoinfo.msl.mt.gov/data/Aerial_Photos/NAIP_2015 The data are also downloadable as a collection of compressed county mosaic (CCM) natural color MrSID images. These data are in UTM coordinates. The FTP folder containing these images is: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2015_NAIP/UTM_County_Mosaics The data are available from the State Library as a collection 10,888 4-band (near infrared, red, green and blue) TIFF images in UTM coordinates. Each image is about 170 megabytes. The tiling format of the TIFF imagery is based on 3.75 x 3.75 minute quarter-quadrangles with a 300 pixel buffer on all four sides. An ESRI shapefile index showing the dates and times the images were acquired is available at https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2015_NAIP/NAIP_2015_Dates.zip An ESRI shapefile index showing the extent of the individual TIFF image files is available at https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2015_NAIP/NAIP_2015_tiff_index.zip To order TIFF images from the State Library, select the quadrangles you want from the tiff index shapefile and send them to the Library, along with a storage device of sufficient size to hold them and return postage for the device.本数据集为蒙大拿州2021年国家农业影像计划（National Agricultural Imagery Program, NAIP）四波段正射校正数字航空影像的ArcGIS Server影像服务。影像默认采用自然色渲染。若需以假彩色红外（CIR）模式查看影像，请将波段4设为红色通道、波段1设为绿色通道、波段2设为蓝色通道。此外，可通过三种处理模板——自然色、彩色红外以及归一化差分植被指数（Normalized Difference Vegetation Index, NDVI）——对该服务进行符号化渲染。 本数据集包含国家农业影像计划（NAIP）获取的影像数据。这些数据为2015年与2016年采集的蒙大拿州大部区域的1米分辨率数字航空照片。受云层覆盖、野火烟雾及积雪影响，2015年的影像采集工作未能完成全部覆盖，因此在2016年补充了相关拍摄任务。2015年采集影像的分布地图可通过以下链接获取：https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2015_NAIP/UTM_County_Mosaics/2015_NAIP.jpg 该数据集可通过蒙大拿州州立图书馆获取，共提供三种格式： 1. 最便捷的格式为可下载的压缩四波段MrSID影像集合，单幅影像尺寸为24千米见方，采用蒙大拿州平面坐标系，单位为米。相关影像的访问网页为：https://geoinfo.msl.mt.gov/data/Aerial_Photos/NAIP_2015 2. 亦可下载压缩的县级镶嵌（CCM）自然色MrSID影像集合，此类数据采用UTM坐标系，相关影像的FTP文件夹地址为：https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2015_NAIP/UTM_County_Mosaics 3. 还可通过州立图书馆获取UTM坐标系下的10888幅四波段（近红外、红、绿、蓝）TIFF影像集合，单幅影像大小约为170兆字节。该TIFF影像的分幅格式基于3.75×3.75分的四分象限格网，且四边带有300像素的缓冲区。 用于展示影像采集日期与时间的ESRI形状文件索引包可通过以下链接下载：https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2015_NAIP/NAIP_2015_Dates.zip；用于展示单幅TIFF影像文件范围的ESRI形状文件索引包可通过以下链接下载：https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2015_NAIP/NAIP_2015_tiff_index.zip 若需从州立图书馆订购TIFF影像，请从TIFF索引形状文件中选取所需的四分象限格网，连同足量存储设备及设备回寄邮资一并发送至州立图书馆。